Demons Power System

[Demonic Energy]

Demonic Energy: The basic form of demonic energy, present in all demons. It can be used for standard abilities, strength enhancement, and defense.

Demonic Magic: A more advanced way of using demonic energy, created by witches. It can only be used through study or understanding of the demonic language, the runes.

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[Source of Demonic Energy]

Demonic Heart: Every demon has a Hellish Heart (some may have more than one heart), which serves as the source of their energy. The strength and quality of the energy depend on the power and health of the Hellish Heart. (It works like a pump, producing and distributing energy throughout the body.)

Feeding: Demons can consume the essence of other beings to increase their energy. This process can be physical or spiritual, and the consumption of energy may alter their abilities depending on the level.

Contracts: Contracts are essentially how demons can negotiate the essence of a soul. With the witches' studies and an advanced understanding of runes, they created this method to keep demons in check. This prevents demons from attacking the human world in an... "extravagant" way. (Though there are still some rather peculiar cases...)

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[Usage and Limitations]

Energy Load: Demons have a limited reserve of energy that recharges over time or by consuming negative energy sources. Exceeding this reserve can lead to temporary exhaustion, internal damage, or death.

External Influence: Certain environments or artifacts can amplify or restrict the use of demonic energy. For example, sacred places may weaken demons, while infernal areas can boost their powers.

Energy Cycle: Demonic energy follows a day and night cycle, where strength may vary depending on the environment and natural conditions. During high-energy periods, demons can perform impressive feats, while in low-energy periods, they may face difficulties.

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[Evolution and Enhancement]

Ascension Ritual: Demons can perform specific rituals to transform and enhance their energy, increasing their potential and acquiring new abilities. But this is limited to pure-blood demons, who have ancestors capable of offering ancient essences...

Martial and Demonic Arts: There are ancient techniques that can be learned to manipulate and utilize energy more efficiently, often passed down through generations. (Ex: Dark Wind Slash, Roxanne's ability that can cut through steel using only wind, or Thunderous Phoenix Steps, used by Katharina, who stole it from the Phenix Family...)

Weapon Mastery: Not much depth is needed here… It falls under the same category as Demonic and Martial Arts—the greater the skill and understanding, the stronger you will be. Though I find it odd that demons use swords, well… Many of them still enjoy this type of combat, and modern weapons are unnecessary in a world where everyone deflects bullets.